If Phantoon is defeated, start at least 2 tiles from the water line, and stutter just before entering it in order to shinecharge in room.

Requires:

{"or": [
  "f_DefeatedPhantoon",
  {"canShineCharge": {"usedTiles": 20, "steepDownTiles": 3, "openEnd": 0}}
]},
"canStutterWaterShineCharge",
"canShinechargeMovementComplex",
"canWallJump",
"HiJump",
"h_shinechargeMaxRunway",
{"shineChargeFrames": 95}

Exit condition:

"leaveShinecharged": {}

Unlocks doors:

{"types": ["ammo"], "requires": []}

Dev note: Using the dry runway and leaving with shinecharged with more frames would require canRiskPermanentLossOfAccess.